The 20-year-old reality star welcomed a daughter on Feb. 1 and she revealed on Instagram why she chose to keep her pregnancy journey private. "I've never felt love and happiness like this I could burst," she wrote.
Kylie also shared an intimate 10-minute video detailing her pregnancy journey, which included the first look of Kim Kardashian West and Kanye West's newest addition via surrogacy, daughter Chicago West.
Following Kylie's birth announcement, her family members and loved ones took to social media to congratulate her on becoming a new mom.
Scott, who performed on Saturday at a pre-Super Bowl party in Las Vegas, couldn't contain his excitement over his newborn baby. "2.1.18 4 ever New rager in town. !!!" he tweeted Sunday, followed by another post promising that he is going to "supply the rage" on his next album.
Kris Jenner shared an Instagram video chronicling Kylie's journey, captioning it with the sweetest message a mother could send a daughter. "God is SO good!! I am so excited and thrilled to welcome another precious baby girl to our beautiful, ever growing family. We are blessed beyond belief!" Kris wrote.
Kylie's best friend, Jordyn Woods, praised her BFF's "growth and maturity" during her pregnancy, captioning an Instagram pic of the pair at Kylie's baby shower, "Your growth and maturity over this time never failed to amaze me. So excited for this new addition! Wifey 4L 💕."